Add sort Patrons by amount

src/app/model/patron.ts

@@ -1,7 +1,7 @@
 export class Patron {
   id: Number
   fullName: string
-  amount: Number
+  amount: number
   email: boolean
   active: boolean
 }

src/app/patrons-list/patrons-list.component.ts

@@ -1,7 +1,6 @@
 import { Component, OnInit } from '@angular/core';
 import {PatronList} from "../model/patron.list";
 import {PatronService} from "../service/patron.service";
-import {Router} from "@angular/router";
 
 @Component({
   selector: 'app-patrons-list',
@@ -12,14 +11,21 @@ export class PatronsListComponent implements OnInit {
 
   patronList: PatronList;
 
-  constructor(private patronService: PatronService, private router: Router) { }
+  constructor(private patronService: PatronService) { }
 
   ngOnInit() {
     this.patronService.getPatronList().subscribe(data => {
       this.patronList = data;
+      this.sortPatronsByAmount();
     });
   }
 
+  sortPatronsByAmount(): void {
+    this.patronList.patrons.sort(function(a, b){
+      return b.amount - a.amount
+    })
+  }
+
   transformPrice(val: number): number {
     return val/100;
   }